Bennett RD and Heftmann E (1962) Thin-layer chromatography of sterols. Journal of Chromatography 9: 359. Copius-Peereboom JW and Beekes HW (1965) The analysis of mixtures of animal and vegetable fats. V. Separation of sterol acetates by thin-layer chromatography in reversed-phase systems and on silica gel G} silver nitrate layers. Journal of Chromatography 17: 99. Hung GWC and Harris AZ (1989) ...

All materials used during the nuclear reactor operation are potential radioactive wastes. The role of the free release of materials from regulatory control is to reduce the amount of radioactive wastes. The CNCAN allows licensees to release materials according to pre-established criteria which comply with Romanian standards and international recommendations. In this paper, the methodology used ...

Radioactive wastes are generated during nuclear fuel cycle operation, production and application of radioisotope in medicine, industry, research, and agriculture, and as a byproduct of natural resource exploitation, which includes mining and processing of ores, combustion of fossil fuels, or production of natural gas and oil. To ensure the protection of human health and the environment from the...

Bangladesh is committed to the peaceful use of atomic energy and has signed all protocols and additional protocol of the International Atomic Energy Agency (IAEA) in this regards. Bangladesh is operating nuclear facilities using radioisotopes, sealed radioactive sources (SRS) and generating radioactive wastes including spent SRS. This paper mainly focuses on the safe management of spent SRS gen...

Wastes containing radioactive and organic compounds (mixed wastes) are difficult to dispose because of the regulations established for nuclear and hazardous wastes. Mixed wastes originate mainly in the emulsions generated in beta emitter determinations by Liquid Scintillation techniques. The use of plastic scintillators instead of liquid cocktails may facilitate the segregation, after measureme...

Partitioning-transmutation technology (PT) will produce radioactive wastes of different physical and chemical properties and in different amounts from those generated in the current nuclear fuel cycle. To assess quantitatively the effects of PT on waste disposal, we first analyzed the amounts of the PT wastes, assumed conditioning for each type of the waste, and then made an attempt to estimate...

Inorganic ion exchangers have a wide number of applications within the nuclear industry and are preferred over conventional organic resins. Zeolites are ideal for the treatment of dilute wastes, provided that the pH is not too extreme, and their relatively low costs make their use highly economical. For more extreme wastes like those encountered in the Hanford storage tanks, new titanium-based ...

Dilution is the mixing of radioactive waste with non-radioactive material, whereas downblending is the mixing of high-level radioactive waste with low-level radioactive waste. These processes have been applied predominantly at nuclear sites as part of the decontamination procedures for the disposal of blended wastes in licensed facilities. Proper health and safety assessments should be carried ...